<template>
    <div>
        <page-main>
            <el-row :gutter="20" style="margin-bottom: 20px;">
                <el-col :span="8">
                    <el-input v-model="queryInfo.query"
                              placeholder="请输入内容"
                              clearable @clear="getGoodsList"
                    >
                        <el-button slot="append"
                                   icon="el-icon-search" @click="getGoodsList"
                        />
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区域 -->
            <div style="margin-bottom: 20px;">
                <el-table :data="goodslist" border stripe>
                    <el-table-column type="index" />
                    <el-table-column label="商品名称" prop="goods_name" />
                    <el-table-column label="商品价格(元)" prop="goods_price" width="95px" />
                    <el-table-column label="商品重量" prop="goods_weight" width="70px" />
                    <el-table-column label="创建时间" prop="add_time" width="140px">
                        <template slot-scope="scope">
                            {{ scope.row.add_time | dateFormat }}
                        </template>
                    </el-table-column>
                    <el-table-column label="操作" width="250px">
                        <template slot-scope="scope">
                            <el-button type="primary" size="mini" icon="el-icon-edit">编辑</el-button>
                            <el-button type="danger" size="mini" icon="el-icon-delete"
                                       @click="removeById(scope.row.goods_id)"
                            >
                                删除
                            </el-button>
                        </template>
                    </el-table-column>
                </el-table>
            </div>

            <!-- 分页 -->
            <el-pagination
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 10, 15, 20]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                background
                @size-change="handleSizeChange" @current-change="handleCurrentChange"
            />
        </page-main>
    </div>
</template>

<script>
export default {
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0
        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', { params: this.queryInfo })

            if (res.meta.status !== 200) {
                return this.$message.error('获取商品列表失败!')
            }

            // this.$message.success('获取商品列表成功!')
            console.log(res.data)
            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        // 每页显示大小尺寸
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 新页码变化
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        async removeById(id) {
            const confirmResult = await// eslint-disable-next-line indent
                this.$confirm('此操作将永久删除该项, 是否继续?', '提示', { confirmButtonText: '确定', cancelButtonText: '取消', type: 'warning'}).catch(err => err)

            if (confirmResult !== 'confirm') {
                return this.$message.info('已取消删除!')
            }
            const { data: res } = await this.$http.delete(`goods/${id}`)

            if (res.meta.status !== 200) {
                return this.$message.error('删除失败!')
            }

            this.$message.success('删除成功!')
            this.getGoodsList()
        },
        goAddpage() {
            this.$router.push('goods/add')
        }
    }
}
</script>

<style lang="scss" scoped>
</style>
